烧结机余热锅炉激波吹灰节能效果好

首钢矿业公司烧结厂采用激波吹灰新技术，有效解决了烧结机余热锅炉翅片积灰的难题，节约了能源，单台余热锅炉年直接经济效益10．96万元。     

铁路混凝土拌和站智能吹灰系统应用与管理

随着高速铁路质量和技术的不断成熟，对于高铁工程拌和站标准化和生产质量的要求也越来越高。在高铁工程用混凝土质量控制方面已经形成严格的管理制度，原材料的采购和使用等也有严格管控措施，尤其是粉料吹入相应的储仓后需经过检验合格后方可使用。除了依靠严格的制度还需要有相应的管理手段之外，拌和站的粉料吹灰监管系统可以有效防止粉料未检先用的情况。     

锅炉智能吹灰控制系统研究

国内对脉冲吹灰技术的研究始于20世纪90年代中期,但近几年才开始实际应用。介绍脉冲吹灰器,并对唐韵公司的全分布式燃气脉冲吹灰系统进行深入研究。     

410t/h水煤浆锅炉吹灰优化

对热电厂100MW水煤浆锅炉吹灰器存在的问题进行分析,进行吹灰器优化改造,合理投入吹灰器运行,提高锅炉运行的安全性和经济性。     

弱爆炸波吹灰器在电厂锅炉中的应用

介绍弱爆炸波吹灰器的工作原理和系统构成,在大唐盘山电厂3#锅炉空气预热器成功应用的实例,以及运行中应注意的事项。     

浅谈声波吹灰技术在工业锅炉中的应用

一、前言 长期以来,锅炉、加热炉的积灰结焦一直是个老大难的问题,它是影响受热面的传热效率,导致效率下降的主要原因之一。更严重的是当积灰结焦达到一定程度后,会引起炉体腐蚀和意外停工,造成重大的经济损失。为此人们研制并使用了蒸汽吹灰器、高压水力吹灰器、钢珠(振动)除灰器。但上述设备都不同程度地存在着诸如除灰范围有限、存在死角、能耗高和维修费用大等问题。 锅炉积灰结焦的原因很复杂,燃料成分及其物理化学性质、     

激波吹灰器在CO锅炉中腐蚀与对策

介绍了激波吹灰器在武汉分公司CO锅炉中的应用情况,以及使用过程中存在的烟气腐蚀问题,并为该类设备今后改进提出了一些建议。     

热电厂蒸汽吹灰系统运行问题分析及治理

针对热电厂蒸汽吹灰系统运行中的问题,分析系统参数及系统流程,提出整改措施。给出改造前后设备投资和运行成本方面的经济分析对比。     

新型蒸汽声波吹灰器在燃煤锅炉上的应用

介绍新型高效蒸汽声波吹灰器工作原理、构成、特点及其应用,解决了锅炉对流受热面应用蒸汽吹灰器存在的吹灰效果差、吹灰器故障率高、受热面管吹损严重等问题.     

吹灰上料拆包工艺自动化设备的设计与应用

在海洋石油勘探开发大宗料服务方面,吹灰上料拆包作业存在着人工劳动强度大、粉尘外溢严重、作业效率低、耗用机具人力多、职业健康安全隐患大等问题。为解决这些问题,文章设计了一款工艺自动化拆包设备,集成吨包输送、抓取、破包、粉料传输、废袋回收、密闭除尘等功能于一体,实现了吨包拆破自动化、密闭除尘和废袋自动收集的目标。这达到预期效果,消除破包环节人工操作模式,降低工人操作强度,减少机具人力占用消耗,消除粉尘外溢,改善提高工人作业环境。     

锅炉粉尘污染治理的技术措施

我厂有两台SHF4-2.45-W1型沸腾锅炉，使朦胧和当地的石煤作燃料，煤质平均发热值11.93kJ/kg，含灰分     

Dust explosion prevention by addition of thermal inhibitors

Combustible dusts such as flour, sugar, metals, plastics and coal are produced as end- or by-products in many industries, including the chemical process industries. The risk of fire or explosion in the handling of these dusts has prompted considerable research effort in the areas of explosion prevention and mitigation. While this work has generally resulted in safer plant operation, the dust explosion hazard has not been eliminated.     

Dust explosion venting for dusts pneumatically conveyed into vessels

The size of venting areas of containers in dust explosions has hitherto been calculated by use of nomograms developed from tests in which explosible dust-air mixtures were produced by rapid discharge of combustible dust from storage containers. Such tests did not truly reflect the conditions prevailing when containers are charged with product in industrial practice. There was, therefore, a need to perform dust explosion tests with vented containers and pneumatic product filling. The results of such tests show that there is a considerable reduction in the venting area in comparison with that predicted from results obtained with earlier test procedures.     

氮气与发泡剂联合防火技术在综放工作面的应用

综放工作面的煤层自燃是制约安全生产的主要因素。本文针对兴阜煤矿2312综采工作面的实际情况,提出了氮气与发泡剂联合使用的防火技术,介绍了防治自然发火的作用机理。现场实际应用表明,氮气与发泡剂联合防火技术降低了煤炭自燃发火的危险性,具有良好的预防自燃发火效果。     

火电厂烟气除尘与脱硫的必要性

随着我国煤炭消费的不断增长，燃煤排放的二氧化硫也不断增加，连续多年超过2000万吨，已居世界首位，致使我国酸雨和二氧化硫污染日趋严重。目前全国火电厂二氧化硫排放量占全国二氧化硫排放量的40%，2010年将达到60%。所以提高火电厂的除尘技术，降低烟尘的排放量，控制二氧化硫的排放已成为社会和经济可持续发展的迫切需求，势在必行。目前火电厂采取的除尘措施主要有以下五种：改变燃料结构，在可能的情况下尽量燃用干净的燃料；提高锅炉的燃烧技术，减少污染物的生成量；设置高效的除尘系统，减少粉尘的排放量；采用高烟囱排放，降低烟…     

焦炉烟尘污染及综合治理技术与装备

针对装煤、推焦、炉门密封不好等情况下的烟尘污染,结合济钢焦炉烟尘综合治理,介绍了国内外已采用的技术与装备。以及治理效果。     

Dust entrainability and its effect on explosion propagation in elongated structures

Two apparatuses have been developed to characterize the entrainability of dust deposits. The minimum aerodynamic wall shear stress required for dust removal (Critical Shear Stress), measured by the first apparatus, is an indicator of the ease with which dust particles can be removed from a layer. The second apparatus measures the settling velocity distribution of dust clouds, which is an important factor controlling the extent of dispersion as well as the time period during which the entrained dust cloud can remain suspended. Testing has shown that the critical shear stress depends not only on the nature of the dust, but on the way the dust deposit is formed. Therefore, a portable version of this apparatus was developed to allow field testing of dust deposits. This methodology has also been used to evaluate the effect of oil treatment sometimes used in the grain handling industry to reduce dust emission. Simulated explosion tests have demonstrated the importance of critical shear stress on dust entrainability. A simple model calculating unsteady dust concentration in elongated structures has been developed. The model shows that flammable dust concentrations induced in a gallery by a primary explosion exist over a finite length and time period. Therefore, the probability of a secondary explosion depends not only on the dust and layer properties, but on the details of the primary explosion and of the enclosure geometry. A simple criterion for transmission of a primary explosion into an adjoining elongated structure is discussed in the paper.     

古城湾装车基地储煤穹顶仓喷雾降尘技术应用

储煤场是煤炭转运的重要环节,为了解决对外部环境的污染问题,古城湾装车基地采用了封闭式穹顶仓储煤场,同时结合现场特点设计了封闭式储煤场自动喷雾降尘系统。这样既可解决运行工人的现场劳动环境,又可摆脱二次环境污染,节省人力,节约资金,实现经济、社会效益双丰收。本文就喷雾降尘系统的技术特点、技术质量、主要优点进行了叙述和探讨。